Barangay Cagsiay III

Situated in Mauban, Quezon, Barangay Cagsiay III is one of 40 barangays that make up the municipality within CALABARZON.

According to the 2020 Philippine census, Barangay Cagsiay III had a population of 2,026. This made it the 13th largest of 40 barangays in Mauban by population, placing it in the middle tier of the municipality. Residents of Barangay Cagsiay III accounted for approximately 2.85% of the total population of Mauban, which stood at 71,081 in the same census year.

Census comparisons between 2015 and 2020 show Barangay Cagsiay III moving from 2,009 residents to 2,026 residents, an intercensal change of +0.8%. The trajectory indicates a slowly expanding community. Barangay Cagsiay III is officially classified as rural, a designation applied to barangays with lower population density and predominantly non-built-up land use.

Mauban is a municipality comprising 40 barangays, and serves as the governing unit directly responsible for local services in Barangay Cagsiay III, including public health, sanitation, peace and order, and civil registration. Within the wider province of Quezon, which contains 1,242 barangays across its component cities and municipalities, Barangay Cagsiay III ranks 297th by 2020 population. Quezon is classified as a 1st by the Bureau of Local Government Finance, a category that reflects the province's annual regular income.

Barangay Cagsiay III is governed by an elected Sangguniang Barangay composed of a Punong Barangay and seven kagawads, with the Sangguniang Kabataan representing the youth. The next BSKE, set for Monday, November 2, 2026, will elect officials to four-year terms as provided under Republic Act No. 12232.